PUBBLICATO DA丽莎晒黑
一种一种prile 2, 2020
API N80-1 Seamless Casing Pipe with BTC threads N80 Seamless Casing Pipe includes N80-1 and N80-Q steel grades。Questi 2两种化学成分和机械性能等级都是相同的。唯一的区别是热处理。The latter one N80-Q steel pipe requires heat treatment before they are to be manufactured into casing pipes。产品描述无缝钢套管带耦合和螺纹保护件标准:API 5CT OD:4-1/2”—–20” Materiale: H40, J55, K55, N80, L80, P110, Q125. discussioni: LTC ( Rotondo lungo Thread), STC ( Filettatura tonda corta), BTC ( Filetto del contrafforte) Lunghezza:R1(4.88-7.62m), R2(7.62-10.36m), R3(10.36-14.63m) […]